<!DOCTYPE HTML>
<!-- 注意这里有一个ng-app -->
<html ng-app>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Hello AngularJS</title>
    <script type="text/javascript" src="http://code.angularjs.org/angular-1.0.1.min.js"></script>

</head>

<body>
    <h1>Hello {{'World'}}!</h1>    
</body>
</html>